There are more than 100 accessibility testing tools. Figuring out which ones to use can be a black hole. For guidance we recommend this article: Which accessibility testing tool should you use?
The author recommends using the tools in the following order fixing as you go along, since no one tool catches all the relevant issues
aXe SiteImprove Tenon WAVE Lighthouse
But if you want to test your site with other tools, here is a bigger list